Influence of the Space Orientation of Joints in the Process of Welding on the Strength and Cyclic Crack Resistance of Welded Joints

We study the regularities of influence of the space orientation of a joint (at angles of 0, 30°, 45°, and 90° to the horizontal plane) for different rates of consumable-electrode pulse-arc welding (23, 40, and 57 m/h) of the sheets of AMg5M structural aluminum alloy 4 mm in thickness with the use of a ZvAMg6 filler wire on the physicomechanical properties of welded joints. It is shown that, by varying the heat input into the welded metal and the rate of crystallization of the metal in the bath, we can perform welding without using backing (forming) elements. The optimal characteristics of cyclic crack resistance of the weld metal of these welded joints are obtained in the case of orientation of joints at an angle of 30° to the horizontal plane. The preliminary monitoring of the properties of these welded joints can be performed by the nondestructive eddy-current testing method according to the specific electric conductivity of the metal.

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References

  1. 1.

    G. L. Petrov, Inhomogeneity of the Metal of Welded Joints [in Russian], Sudpromgiz, Leningrad (1963).

  2. 2.

    V. S. Mashin, V. M. Pavshuk, I. V. Dovbishchenko, and P. P. Sheiko, “Influence of the modes of pulse-arc welding of ADO aluminum on the shape and porosity of the welds,” Avtomat. Svarka, No. 4, 57–60 (1991).

  3. 3.

    A. M. Zhernosekov and V. V. Andreev, “Pulse-arc consumable-electrode welding,” Avtomat. Svarka, No. 10, 48–51 (2007).

  4. 4.

    V. A. Lebedev, “Some features of the arc machine welding of aluminum with controlled pulsed feed of the electrode wire,” Svar. Proizvod., No. 11, 26–30 (2007).

  5. 5.

    J. Matsumoto, “Defects in aluminum welds and their influence on mechanical properties – 1,” J. Light Met. Weld. Constr., 22, No. 10, 443–449 (1984).

    Google Scholar 

  6. 6.

    J. Matsumoto “Defects in aluminum welds and their influence on mechanical properties – 2,” J. Light Met. Weld. Constr., 22, No. 10, 491–497 (1984).

    Google Scholar 

  7. 7.

    D. Colchen, “Application des calculs aux elements finis pour definer et valider des modeles analitiques de calcul de contrainte sur un assemblage bout a bout en alliage d’aluminium,” Soudage Tech. Connexes, 54, No. 3-4, 9–16 (2000).

  8. 8.

    T. Labur, Yu. Holovatyk, M. Pashulya, and M. Yavors’ka, “Influence of the technology of welding on the structure and physicomechanical properties of the joints of AMg5M aluminum alloy,” in: V. V. Panasyuk (editor), Fracture Mechanics of Materials and Strength of Structures: Proc. of the Fifth Internat. Conf. (Lviv, 24–27.06.2014) [in Ukrainian], Karpenko Physicomechanical Institute, Ukrainian National Academy of Sciences, Lviv (2014), pp. 457–461.

  9. 9.

    O. P. Ostash, D. S. Kiva, V. M. Uchanin, O. I. Semenets', I. M. Andreiko, and Yu. V. Holovatyuk, “Diagnostics of the technical state of aircraft structures after long-term operation,” Tekh. Diagnost. Nerazrush. Kontr., No. 2, 15–22 (2013).

  10. 10.

    GOST 6996-66. Welded Joints. Methods for Mechanical Testing, Introduced on 1.01.1967.

  11. 11.

    Standard Test Method for Measurement of Fatigue Crack Growth Rates. ASTM Standards, E647-93.

  12. 12.

    N. M. Naumov and P. G. Miklyaev, Resistometric Nondestructive Testing of Deformable Aluminum Alloys [in Russian], Metallurgiya, Moscow (1974).

  13. 13.

    R. C. McMaster, P. McIntire, and M. L. Mester (editors), Nondestructive Testing Handbook, Vol. 4: Electromagnetic Testing, 2nd edition, Amer. Soc. Nondestruct. Test. (1986).

  14. 14.

    O. P. Ostash, I. M. Andreiko, and Yu. V. Holovatyuk, “Degradation of materials and fatigue durability of aircraft constructions after long-term operation,” Fiz.-Khim. Mekh. Mater., 42, No. 4, 5–16 (2006); English translation: Mater. Sci., 42, No. 4, 427–439 (2006).

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Correspondence to O. P. Ostash.

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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 52, No. 2, pp. 35–42, March–April, 2016.

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Labur, T.M., Ostash, O.P., Holovatyuk, Y.V. et al. Influence of the Space Orientation of Joints in the Process of Welding on the Strength and Cyclic Crack Resistance of Welded Joints. Mater Sci 52, 180–187 (2016). https://doi.org/10.1007/s11003-016-9941-1

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Keywords

  • AMg5M aluminum alloy
  • welded joints
  • technology of welding
  • strength
  • cyclic crack resistance